Louis Tully was an average accountant until the day that Vinz Clortho Keymaster of Gozer the Traveler—possessed him in service of the end the world. Now the news says New York is at the center of Sumerian shenanigans again, and Louis should want nothing more than to steer clear... but something is drawing him back. Is it morbid curiosity or something more sinister? “Mass Hysteria,” the 30th Anniversary celebration, continues here!